<template>
  <section class="todoapp">
    <TodoHeader @addTask="hAdd" />
    <TodoMain
      @isCheck="hChecked"
      @changeState="hState"
      @delTask="hDel"
      :list="showList"
    />
    <TodoFooter @changeShow="isShow" @clearChecked="hClear" :list="showList" />
  </section>
</template>

<script>
import TodoHeader from "./components/TodoHeader.vue";
import TodoMain from "./components/TodoMain.vue";
import TodoFooter from "./components/TodoFooter.vue";
export default {
  components: {
    TodoHeader,
    TodoMain,
    TodoFooter,
  },
  data() {
    return {
      list: [
        { id: 1, name: "吃饭", isDone: true },
        { id: 2, name: "睡觉", isDone: false },
        { id: 3, name: "打豆豆", isDone: true },
      ],
      state: "all",
    };
  },
  methods: {
    hDel(id) {
      const index = this.list.findIndex((item) => item.id === id);
      this.list.splice(index, 1);
    },
    hState(id) {
      const obj = this.list.find((item) => item.id === id);
      obj.isDone = !obj.isDone;
    },
    hClear() {
      this.list = this.list.filter((item) => !item.isDone);
    },
    hAdd(taskname) {
      this.list.push({
        name: taskname,
        id: Date.now(),
        isDone: false,
      });
    },
    isShow(state) {
      // console.log(state);
      this.state = state;
      // console.log(this.state);
    },
    hChecked(val) {
      this.list.forEach((item) => (item.isDone = val));
    },
  },
  computed: {
    showList() {
      if (this.state === "all") {
        return this.list;
      } else if (this.state === "active") {
        return this.list.filter((item) => !item.isDone);
      } else {
        return this.list.filter((item) => item.isDone);
      }
    },
  },
};
</script>

<style></style>
